A325447 - cp's OEIS frontend

A325447 Triangle read by rows: T(n,k) is the number of simple nonseparable (or 2-connected) graphs on n unlabeled nodes with circumference k, (n >= 3, k >= 3).

n	a(n)
3	1
4	0
5	3
6	0
7	2
8	8
9	0
10	2
11	6
12	48
13	0
14	2
15	9
16	74
17	383
18	0
19	2
20	10
21	159
22	756
23	6196
24	0
25	2
26	13
27	276
28	2058
29	14634
30	177083
31	0
32	2
33	14
34	505
35	4824
36	48137
37	384942
38	9305118

[1, 0, 3, 0, 2, 8, 0, 2, 6, 48, 0, 2, 9, 74, 383, 0, 2, 10, 159, 756, 6196, 0, 2, 13, 276, 2058, 14634, 177083, 0, 2, 14, 505, 4824, 48137, 384942, 9305118]

cp's OEIS Frontend

A325447 Triangle read by rows: T(n,k) is the number of simple nonseparable (or 2-connected) graphs on n unlabeled nodes with circumference k, (n >= 3, k >= 3).

Table of values

List of values